The number of students in a school kept changing every year.In the year 1999, the total number of students in the school was 1000.In the year 2000,it is increased by 20%.In 2001,it again increased by 20%, but in 2002,it decreased by 5%.Find the number of students in the school at the end of year 2002 :
1. 1300
2. 1368
3. 1400
4. 1638

• In 1999, no. of students = 1000
  In 2000, %increase = 20%
  => 1000*120/100 =1200
  In 2001, 1200*120/100 = 1440
  In 2002, % decrease = 5%
  => 1440*95/100 = 1368
  
  Ans : (2) 1368
• 10 years agoHelpfull: Yes(51) No(0)
• Ans should be 1368 because
  1000*20/100= 200
  1000+200=1200
  now
  20% of 1200 will be 240
  1200+240=1440
  again 5% of the total will be decreased that is 1440*5/100=72
  1440-72=1368
• 10 years agoHelpfull: Yes(12) No(0)
• 1000*(1+0.20)*(1+0.20)*(1-0.05)=1368
• 10 years agoHelpfull: Yes(5) No(0)
• ans) 1368
  
• 10 years agoHelpfull: Yes(3) No(1)
• 2.1368
  
  1000*120*120*95/(1000000)=1368
• 10 years agoHelpfull: Yes(2) No(1)
• in 1999-->1000
  in 2000-->1000*20/100-->200+1000=1200
  in 2001-->1200*20/100-->240+1200=1440
  in 2002-->1440*5/100=72-->1440-72=1368
  ans is 1368
• 10 years agoHelpfull: Yes(2) No(0)
• ans: 1368
  1000*(120/100)*(120/100)*(95/100)=1368
• 10 years agoHelpfull: Yes(1) No(1)
• year1999=1000
  year2000=1000*20/100 increase
  =200
  =1000+200
  =1200
  year 2001=1200*20/100 increase
  =240
  =1200+240
  =1440
  year2002=1440*5/100 decrease
  =72
  =1440-72
  =1368
• 7 years agoHelpfull: Yes(1) No(0)
• Ans: 2) 1368
  1999- 1000
  2000- 1200
  2001- 1440
  2002- 1368
• 10 years agoHelpfull: Yes(0) No(0)
• 1368 is the answer
• 10 years agoHelpfull: Yes(0) No(1)
• 1000+200-->1200
  1200+240-->1440
  1440-72--> 1368
• 10 years agoHelpfull: Yes(0) No(0)
• In 1999 no. of students=1000,In 2000 no. of students=1000+20% of 1000=1200,In 2001 no. of students=1200+20% of 1200=1440,In 2002 no. of students=1440-5% of 1440=1368.
  S0, 2. 1368 is the answer.
  
• 9 years agoHelpfull: Yes(0) No(0)
• 1999-1000
  2000-1200
  2001-1440
  2002-1368
  
• 8 years agoHelpfull: Yes(0) No(0)
• 1999 yr = 1000
  2000 yr = 1000+20/100*1000=1200
  2001 yr = 1200+20/100*1200=1440
  2002 yr = 1440-5/100*1440=1368 ---------decrease
  Ans is 1368
• 8 years agoHelpfull: Yes(0) No(0)